Valve.



'agee/M 0%/ T. B. STANGE.

VALVE.

APPLIOAT-[ON FILED JUNE 30, 1910. v l 1,002,938, e Patented Sept. 12, 1911.

2 SHEETS-SHEET 1.

1. E. STANGE.

, VALVE.

APPLIUATION FILED JUNE 30, 1910.

Patented Sept. 12,1911.-

Fig. 7 shows the top of the 4the stem at 8 to rrnly TEEODOBE 'E3 STANGE,

PATENT A. oEEroE.

or cutanea', ILLINOIS.

Specification of Letters Patent.

V*Patennai sept. 12,1911.

. Application ma :une so, 1am. serial-1ro. aeasao;

To'all whomitmay concern.'

Be it known that I, THEonoRE E. STANGE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illlnois, have invented certain new and useful Improvements in Valves, of which the following is a description. v

My inventlon belongs to that general class of valve intended for use with pumps and similar devices, and has among its objects the production of a simple, economical, durable and eiiective device for that purpose.

To this end it consists in the novel construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the .cla1ms.

In the .drawings wherein like reference characters indicate like or corresponding parts,Figure 1 is a central vertical sect-lon of my improved device'. Fig. 2 is a to plan of the same. Fig. 3 is a bottom p an 'of the base ring forming the valve seat. Fig. 4 is a perspective view of the bonnet for the valve. Fig. 5 is a vertical sect-ion of a slightly modified form. Fig. 6 is a bottom plan view of the form shown in Fig. 5, and valve stem in the form shown in Fig. 5.

In the drawings 1 is a suitable base, screw threaded at its lower part at-2 to engage similar threads in the pipe or opening into the pump, and screw threaded at 3 to engage the ring 4 ofthe bonnet 5.

6 is a valve stem extending through the top of the bonnet and having secured toits inner end the valve plate 7 As shown in Fig. 1, the end of the stem is screw threaded as at 8 and the plate 7 is engaged therewith by a coperating screw thread formed thereon. If preferred, however, the plate 7 and stem 6 may be formed integral with one another.

9 is a packing or valve ring preferably of rubber or equlvalent material for the purose, which being seated in a recess 10 ormed in the plate 7 is retained therein by a follower 11 screwed upon the end of retain the ring in position. y

12-12 are Spanner holes in the plate 11.

As here shown, the working face of the ring 9 is inclined as at- 13. I havefound in practice that an inclination of from 40 to 50 degrees is satisfactory. The top of the ring 1 is correspondingly incllned to coperate with the ring 9.

' entangled.

A s Iring 14 or equivalent member is positione between the plate 7 and the top of i t-he bonnet 5 serving to resiliently hold the valve down upon its seat.

15-15 are projections or lugs formed on 'the base 1 by which it may be handled or .turned in machining the same.

Just above the line of the top of the bonnet 5 I prefer to provide means for engaging a suitable tool with the stem 6 so that the valve 9 may be lifted off of its seatffor the purpose "of cleaning the valve seat or disengaging anything that might become entangled therein. As shown in the drawings, I accomplish this by the periphery of the stem 6. Equivalent means may be employed for the same purpose. By engaging a suitable tool therewith and using the top of the bonnet as a'fulcrum the valve ymay be readily lifted off fofits seat, or after the arts are assembled it may be engaged in t-hls manner -in reaching into a recess to position it at the point desired. I also provide means by which the fvalve may be rotatably turned on its seat with a grinding action for the purpose of cleaningthe same or disengaging anything As shown in Figs. 1 and 2, the -top of the valve stem at 17 is square or equivalently formed for the engagement of a wrench. As shown in Figs. 5 and. 7, a simple slot. 18 is formed at the top of the stem .6 by -means of which a tool similar to a screw driver may be engaged therewith and with an ordinarybrace the valve mag;7 be ground upon its seat as stated.

In the modified form shown in Figs. 5 and 6, the valve 9 is seated upon a square or flat face 18. As here shown, the follower or plate 11 is secured to the stem 6 by means of a screw 19 entering the threaded recess formed longitudinally in the end of the stem. The operation in each case is substantially the same.

It will be seen that the entire device is sim le in its construction and readily assembled or disassembled for the purpose of Acleaning the same or placing it in position. Any foreign matter Such as tar or other sticky substance that might come in contact with the valve is readily disengaged by the means pointed out, or if desired, the entire valve may be disassembled for4 this purpose. In practice it is found to be very durable and effective in its act-ion. By

" forming the lugs 15 for the machining operations and dis ensing with the usual cross bars the o emngto the valve is unobstructed andl o ers an unobstructed passage for the fluid passingtherethrough. In the preferred constructlon the plate 7 is provided with a downwardly dependin flange 2O formin a vrecess within which t e ring 9 is'locate As'shown the marginal edge of the plate 7 and the outer surface of the 'ring 9 are in line or practically flush, giving the wholza neat appearance-and servlng to f 'e'ectually retain the ring and prevent "its extendedl bearing' for the stem, by` reason of its conical formationvwill not interfere with 'the ready rmovement, of the spring.

Having thus pointed out my invention it is obvious that immaterial modifications` may be made without departing from the spirit of my invention.

v Having thus described my invention, what Il claim as new and desire to secureA by'Letters Patent is: t

1. A device of the kind descr1bed,-comprising a hollow base ring screw threaded I at its periphery to be suitably connected in operative position andhaving spaced in` wardly extending tool engaging projections on its inner surface, and a bonnet screw threaded to engage said base, in combina tion with a'valve provided with a stem eX- tending through the body and constructed at `its upper end to engage a tool to rotate the valve, a valve ring positioned within a suitable recess within the valve, a follower adapted to be secured to the valve stem to `maintain the ring in position, and a s ring positioned between the bonnet an the valve to maintain'the latter in operable position. i l c 2. A device of the kind described, comprising a base adapted to be secured in operatlve position,V and a cooperating bonnet therefor, in combination with a valve positioned within the bonnet, and including a Avalve plate, a stem passing therethrough and'having a bearing at 4its upper end 1n the bonnet, a valve ring mounted on the plate, nd said valve plate offerin no obstruction beyond the peripheryv o the valve ring, and means for resiliently pressing the valve ring to its seatscomprislng a retaining plate threaded directly to the lower end of thevalve stem and having an annular wallfto engage the inner surface of said ring and a proJecting peripheral iange to engage the lower surface 'of said ring.

'3. Adevice of the kind described, comprising a! base ring 1, screwthreaded at 2, to be suitably connected in operable position, and a bonnet 5 screw threaded to engage the base, in-combination with a valve 7 provided with a stem extending through the bonnet and provided with acircumferential groove 16 above the plane of the bonnet and with its free end formed to engage a tool to rotate the valve, a valve ring 9 ositioned within a suitable recess in the va ve, .a follower 11 adapted to be secured to the valve stem to maintain the ring in `osition, and a spring positioned between t e bonnet and the valve to maintain the latter in operable.

position.

In testimony whereof, I have hereunto signed my name in the presence of .two subscribing witnesses.

THEODORE E. STANGE. Witnesses:

ROY W. HILL, CHARLES I. COBB. 

